Why is it not suitable for the pipeline pressure testing length to be greater than 1000m?
Thread Content
This post was last edited by Yunmu on 2019-4-3 22:28. The \"Code for Construction and Acceptance of Water Supply and Drainage Pipeline Projects\" (GB50268-2008) stipulates: (1) Steel pipes, cast iron pipes. The sectional length for hydrostatic testing should not exceed 1000 m. (2) If polyethylene water supply pipes are used: Divide the pipe section to be pressure-tested, and the length of the pipeline for hydrostatic testing should not exceed 1000 m. For pipe sections with attachments in between, the segment length should not exceed 500 m; when the materials of pipe sections in the system are different, tests should be conducted separately for each. May I ask, why is it not suitable for distances greater than 1000 meters? What are the disadvantages of using pressure testing at such distances? And why might the results be inaccurate?
A hydrostatic test only checks the pressure resistance at one point; the longer the test duration, the less accurate the results.
I have little experience with water supply and drainage systems, and I’m not quite clear about the length requirements. For long-distance pipelines, a length of around 30 kilometers is generally required, while there are no such length requirements for station construction. I’m also looking for an answer to this question
I don’t understand. My fire protection pipes are pressurized to 14 kilograms; as long as the pressure is maintained, there should be no problem, right? It has nothing to do with the length, right?
This point refers to a distance. In short, if you follow the rules, it simply means spending more time and additional costs, but compared to the costs involved in making corrections later on, those amounts are negligible.
This is a principle-based regulation established primarily to facilitate experimental operations
There doesn’t seem to be such a term for petrochemical pipelines, right?